diff options
Diffstat (limited to 'system/include/libc/sched.h')
| -rw-r--r-- | system/include/libc/sched.h | 213 |
1 files changed, 124 insertions, 89 deletions
diff --git a/system/include/libc/sched.h b/system/include/libc/sched.h index 13586878..6a6b2fcb 100644 --- a/system/include/libc/sched.h +++ b/system/include/libc/sched.h @@ -1,97 +1,132 @@ -/* - * Written by Joel Sherrill <joel@OARcorp.com>. - * - * COPYRIGHT (c) 1989-2010. - * On-Line Applications Research Corporation (OAR). - * - * Permission to use, copy, modify, and distribute this software for any - * purpose without fee is hereby granted, provided that this entire notice - * is included in all copies of any software which is or includes a copy - * or modification of this software. - * - * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION - * OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS - * SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. - * - * $Id: sched.h,v 1.2 2010/04/01 18:33:33 jjohnstn Exp $ - */ - -#ifndef _SCHED_H_ -#define _SCHED_H_ - -#include <sys/types.h> -#include <sys/sched.h> - +#ifndef _SCHED_H +#define _SCHED_H #ifdef __cplusplus extern "C" { #endif -#if defined(_POSIX_PRIORITY_SCHEDULING) -/* - * XBD 13 - Set Scheduling Parameters, P1003.1b-2008, p. 1803 - */ -int sched_setparam( - pid_t __pid, - const struct sched_param *__param -); - -/* - * XBD 13 - Set Scheduling Parameters, P1003.1b-2008, p. 1800 - */ -int sched_getparam( - pid_t __pid, - struct sched_param *__param -); - -/* - * XBD 13 - Set Scheduling Policy and Scheduling Parameters, - * P1003.1b-2008, p. 1805 - */ -int sched_setscheduler( - pid_t __pid, - int __policy, - const struct sched_param *__param -); - -/* - * XBD 13 - Get Scheduling Policy, P1003.1b-2008, p. 1801 - */ -int sched_getscheduler( - pid_t __pid -); - -/* - * XBD 13 - Get Scheduling Parameter Limits, P1003.1b-2008, p. 1799 - */ -int sched_get_priority_max( - int __policy -); - -int sched_get_priority_min( - int __policy -); - -/* - * XBD 13 - Get Scheduling Parameter Limits, P1003.1b-2008, p. 1802 - */ -int sched_rr_get_interval( - pid_t __pid, - struct timespec *__interval -); -#endif /* _POSIX_PRIORITY_SCHEDULING */ - -#if defined(_POSIX_THREADS) || defined(_POSIX_PRIORITY_SCHEDULING) || defined(EMSCRIPTEN) - -/* - * XBD 13 - Yield Processor, P1003.1b-2008, p. 1807 - */ -int sched_yield( void ); - -#endif /* _POSIX_THREADS or _POSIX_PRIORITY_SCHEDULING */ +#include <features.h> -#ifdef __cplusplus +#define __NEED_struct_timespec +#define __NEED_pid_t +#define __NEED_time_t + +#ifdef _GNU_SOURCE +#define __NEED_size_t +#endif + +#include <bits/alltypes.h> + +struct sched_param { + int sched_priority; + int sched_ss_low_priority; + struct timespec sched_ss_repl_period; + struct timespec sched_ss_init_budget; + int sched_ss_max_repl; +}; + +int sched_get_priority_max(int); +int sched_get_priority_min(int); +int sched_getparam(pid_t, struct sched_param *); +int sched_getscheduler(pid_t); +int sched_rr_get_interval(pid_t, struct timespec *); +int sched_setparam(pid_t, const struct sched_param *); +int sched_setscheduler(pid_t, int, const struct sched_param *); +int sched_yield(void); + +#define SCHED_OTHER 0 +#define SCHED_FIFO 1 +#define SCHED_RR 2 +#define SCHED_BATCH 3 +#define SCHED_IDLE 5 +#define SCHED_RESET_ON_FORK 0x40000000 + +#ifdef _GNU_SOURCE +#define CSIGNAL 0x000000ff +#define CLONE_VM 0x00000100 +#define CLONE_FS 0x00000200 +#define CLONE_FILES 0x00000400 +#define CLONE_SIGHAND 0x00000800 +#define CLONE_PTRACE 0x00002000 +#define CLONE_VFORK 0x00004000 +#define CLONE_PARENT 0x00008000 +#define CLONE_THREAD 0x00010000 +#define CLONE_NEWNS 0x00020000 +#define CLONE_SYSVSEM 0x00040000 +#define CLONE_SETTLS 0x00080000 +#define CLONE_PARENT_SETTID 0x00100000 +#define CLONE_CHILD_CLEARTID 0x00200000 +#define CLONE_DETACHED 0x00400000 +#define CLONE_UNTRACED 0x00800000 +#define CLONE_CHILD_SETTID 0x01000000 +#define CLONE_NEWUTS 0x04000000 +#define CLONE_NEWIPC 0x08000000 +#define CLONE_NEWUSER 0x10000000 +#define CLONE_NEWPID 0x20000000 +#define CLONE_NEWNET 0x40000000 +#define CLONE_IO 0x80000000 +int clone (int (*)(void *), void *, int, void *, ...); +int unshare(int); +int setns(int, int); + +void *memcpy(void *__restrict, const void *__restrict, size_t); +int memcmp(const void *, const void *, size_t); +void *calloc(size_t, size_t); +void free(void *); + +typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t; +int __sched_cpucount(size_t, const cpu_set_t *); +int sched_getaffinity(pid_t, size_t, cpu_set_t *); +int sched_setaffinity(pid_t, size_t, const cpu_set_t *); + +#define __CPU_op_S(i, size, set, op) ( (i)/8 >= (size) ? 0 : \ + ((set)->__bits[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) + +#define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) +#define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) +#define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &) + +#define __CPU_op_func_S(func, op) \ +static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ + const cpu_set_t *__src1, const cpu_set_t *__src2) \ +{ \ + size_t __i; \ + for (__i=0; __i<__size/sizeof(long); __i++) \ + __dest->__bits[__i] = __src1->__bits[__i] \ + op __src2->__bits[__i] ; \ } + +__CPU_op_func_S(AND, &) +__CPU_op_func_S(OR, |) +__CPU_op_func_S(XOR, ^) + +#define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) +#define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) +#define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) + +#define CPU_COUNT_S(size,set) __sched_cpucount(size,set) +#define CPU_ZERO_S(size,set) memset(set,0,size) +#define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) + +#define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ + + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) +#define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) +#define CPU_FREE(set) free(set) + +#define CPU_SETSIZE 128 + +#define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) +#define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) +#define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) +#define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) +#define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) +#define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) +#define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) +#define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) +#define CPU_EQUAL(set) CPU_EQUAL_S(sizeof(cpu_set_t),set) + #endif -#endif /* _SCHED_H_ */ +#ifdef __cplusplus +} +#endif +#endif |